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Investigation of Damage and Microclimate Deterioration Caused by Dampness in the Palace of Signatories to the Declaration of Independence

. Ignataviius

Institute of Architecture on Vilnius Gediminas Technical University, Lithuania

G. Ignataviius

University of Vilnius, Lithuania, g.ignatavicius{at}gamta.lt

Two years after reconstruction work, the microclimate in the basement of the Palace of Signatories to the Declaration of Independence in Lithuania has deteriorated. Excess moisture has caused salt efflorescence, staining of the exterior walls and ceilings and spread of an unpleasant smell throughout the building. Tests showed that damp-proofing of the basement exterior walls was inadequate. In 1 area, water removed through storm drains penetrated into the basement through exterior walls and streamed into the building 3h after the beginning of a storm. No water streamlets were observed at the 2 other storm-water drainage spots but the humidity of the plaster of the basement exterior walls increased after rain. Dampness has caused salt efflorescence on the facing of the basement walls and other building structures. Humidity tests showed that the relative humidity in the basement exceeded the specified maximum. Relative humidity near the surface of the walls and floor also exceeded the specified maximum. Such high humidity favours the growth of mycelial micro-organisms and can affect human health. Temperature differences between the various basement spaces also exceeded the specified maximum. Such temperature differences can cause great thermal discomfort. Overall the results show that the environment in the basement and the air quality generally in the Palace are not suitable for a public building.

Key Words: Microclimate • Moisture • Water damage • Salt efflorescence

Indoor and Built Environment, Vol. 14, No. 1, 89-95 (2005)
DOI: 10.1177/1420326X05050503


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